Changed TinyMCE help shortcut key to ALT+F8

Fixes CNVS-1802

Test plan:
- Visit an RCE editor in Canvas.
- Press ALT+F8 to confirm that the help dialog appears.
- Using a screen reader, verify that the user is told that they can press
  ALT+F8 to get help.

Change-Id: I068c6f519df7ebaa94ffb846a82b5d48667954f4
Reviewed-on: https://gerrit.instructure.com/31745
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Matt Fairbourn <mfairbourn@instructure.com>
Reviewed-by: Derek DeVries <ddevries@instructure.com>
Product-Review: Aaron Cannon <acannon@instructure.com>

Author: Aaron Cannon

app/coffeescripts/editor/editorAccessibility.coffee

@@ -37,4 +37,4 @@ define [
         @$el.find("##{@id_prepend}_instructure_record img").attr('alt') + ", " + I18n.t('accessibles.record', 'This feature is inaccessible for screen readers.'));
 
     _addTitles: ->
-      @$iframe.attr 'title', I18n.t('titles.rte_help', 'Rich Text Area. Press ALT F10 for toolbar. Press ALT 0 for help.')
+      @$iframe.attr 'title', I18n.t('titles.rte_help', 'Rich Text Area. Press ALT F10 for toolbar. Press ALT F8 for help.')

app/coffeescripts/editor/stocktiny.coffee

@@ -4,7 +4,7 @@ define [
   'tinymce/jscripts/tiny_mce/tiny_mce_src'
   'tinymce/jscripts/tiny_mce/langs/en'
   'tinymce/jscripts/tiny_mce/themes/advanced/langs/en'
-  'tinymce/jscripts/tiny_mce/themes/advanced/editor_template'
+  'tinymce/jscripts/tiny_mce/themes/advanced/editor_template_src'
   'tinymce/jscripts/tiny_mce/plugins/media/editor_plugin_src'
   'tinymce/jscripts/tiny_mce/plugins/paste/editor_plugin_src'
   'tinymce/jscripts/tiny_mce/plugins/paste/langs/en_dlg'

public/javascripts/tinymce/jscripts/tiny_mce/themes/advanced/editor_template_src.js

@@ -8,7 +8,7 @@
  * Contributing: http://tinymce.moxiecode.com/contributing
  */
 
-(function(tinymce) {
+define(['tinymce/jscripts/tiny_mce/tiny_mce_src'], function(tinymce) {
 	var DOM = tinymce.DOM, Event = tinymce.dom.Event, extend = tinymce.extend, each = tinymce.each, Cookie = tinymce.util.Cookie, lastExtID, explode = tinymce.explode;
 
 	// Generates a preview for a format
@@ -726,7 +726,10 @@
 			});
 
 			// alt+0 is the UK recommended shortcut for accessing the list of access controls.
-			ed.addShortcut('alt+0', '', 'mceShortcuts', t);
+			// Instructure:
+			// Unfortunately, it creates a conflict with a foreign character on the Mac.
+			// Also, this standard has really failed to catch on, so we use something else.
+			ed.addShortcut('alt+f8', '', 'mceShortcuts', t);
 
 			return {
 				iframeContainer : ic,
@@ -1487,4 +1490,4 @@
 	});
 
 	tinymce.ThemeManager.add('advanced', tinymce.themes.AdvancedTheme);
-}(tinymce));
+});

public/javascripts/tinymce/jscripts/tiny_mce/tiny_mce_src.js

@@ -12937,6 +12937,22 @@ tinymce.create('tinymce.ui.Toolbar:tinymce.ui.Container', {
 							o[v] = true;
 							break;
 
+						// Instructure: Added handling of F1-F12 keys.
+						case 'f1':
+						case 'f2':
+						case 'f3':
+						case 'f4':
+						case 'f5':
+						case 'f6':
+						case 'f7':
+						case 'f8':
+						case 'f9':
+						case 'f10':
+						case 'f11':
+						case 'f12':
+							o.keyCode = 111 + parseInt(v.substr(1), 10);
+							break;
+
 						default:
 							o.charCode = v.charCodeAt(0);
 							o.keyCode = v.toUpperCase().charCodeAt(0);
@@ -17770,4 +17786,4 @@ tinymce.onAddEditor.add(function(tinymce, ed) {
 })(tinymce);
 
 	return this.tinyMCE;
-});
+});